Sharp UX-P115 Service Manual page 52

UX-P115U
[Signals for status recognition according to input signals]
Signal Name
RHS H: The handset is in the on-hook state.
L: The handset is in the off-hook state.
CI Incoming call (CI) detection signal
[Other signals]
Signal Name
TEL IN Receiving signal from line or modem
SPOUT Speaker output signal
TXOUT Transmission (DTMF) analog signal output
from modem
RXIN Reception (DTMF, others) analog signal input
into modem
NO Signal Name (CNLIUA)
1 RHS-
2 MAG
3 +24VL
4 MICMUTE
5 TELIN
6 TELMUTE
(Example: SENDING/RECEIVING)
LINE
H
L
CML
CI DETECTOR
PC1
Q102
RX
TEL MUTE
(H:MUTE)
TX
HANDASET
MIC MUTE
(H:MUTE)
Q103
: FAX SENDING/RECEIVING
Function
Function
NO Signal Name (CNLIUA)
7 RXIN
8 TXOUT
9 CML
10 PIN
11 FILM
12 CI-
TEL/LIU PWB CONTROL PWB
IC100
TXOUT
RXIN
IC100
IC100
TEL IN
IC100
SPEAKER
SP MUTE
(H:MUTE)
+24VL
DG
SIGTX SPKRP
SP OUT
MIC ENABLE
SIGRX
MICP
MIC
/LINE
SELECT
LINEIN
LINE IN ENABLE
MODEM BLOCK
(CX20438 I/A)
SPOUT
LINE
OUT
IC4
DTMFMUTE
RCVOL
SP MUTE
TEL MUTE
CI
CML
MIC MUTE
5 – 11
RTLOOP
0,6dB
0,1
0,0
DAC DAC
1,0
1,1
ENABLE
LPF
0,20,25,30dB
ADC
LINE OUT ENABLE
LINE
SELECT
1,1
0,0
SOUT
1,0
MUTE,0,-6,-12dB
IC3 SCE209
FAX CONTROLLER
SIN
0,+4dB